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NATHALIE K DIETHRICH PMHNP
NPI 1104374727
Nurse Practitioner - Psychiatric/Mental Health in Decatur, IL

Active since September 12, 2016PECOS EnrolledAccepts Medicare Assignment
151 N MAIN ST, DECATUR, IL 62523(217) 362-6262(217) 362-6290 Get Directions Write a Review

NPPES record last updated: September 30, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 3, 2022, Apr 22, 2020, Jan 23, 2020 and 1 more (4 updates tracked since 2016).

About Nathalie K Diethrich Pmhnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NATHALIE K DIETHRICH PMHNP (NPI 1104374727) is an individual psychiatric/mental health provider in Decatur, Illinois, licensed in Illinois (277001744) and active in the NPI registry since September 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1104374727
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameNATHALIE K DIETHRICHCredential: PMHNP
Location Address151 N MAIN STDecatur, IL 62523-1206
Mailing Address151 N Main StDecatur, IL 62523-1206 · (217) 362-6262 · Fax (217) 362-6290
Phone(217) 362-6262
Fax(217) 362-6290
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateSeptember 12, 2016
Last NPPES UpdateSeptember 30, 20254 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2025
✔ NPI 1104374727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in IL · 277001744✔ Licensed in IL · 377001689✔ Licensed in IL · 209.014716
151 N MAIN ST, Decatur, IL 62523
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nathalie K Diethrich Pmhnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2860778651
PECOS Enrollment IDI20170410001898
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
52 services34 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
44 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62523 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CARRIE A RAY
Counselor (Professional)
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 362-6262
CATHY JOHANSEN L.P.N.
Licensed Practical Nurse
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 362-6262
MATYA LEANN RILEY FNP-C
Nurse Practitioner (Family)
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 362-6262
ADDIE L SMITH LSW
Social Worker
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 362-6262
BARBARA L PICKETT
Licensed Practical Nurse
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 362-6262
HERITAGE BEHAVIORAL HEALTH CENTER INC.
Clinic/Center (Primary Care)
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 362-6262
MICHELLE HANSON LCPC
Counselor (Professional)
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 362-6262
LESA J MCMAHON-LOWE LCPC
Counselor (Professional)
151 N MAIN ST
DECATUR, IL 62523
Macon County (217) 420-4776

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nathalie Diethrich's NPI number?

The NPI number for Nathalie Diethrich is 1104374727. It was assigned to this individual provider in the NPPES registry on September 12, 2016.

Where is Nathalie Diethrich located?

Nathalie Diethrich practices at 151 N Main St, Decatur, IL 62523. The listed phone number is (217) 362-6262.

What is Nathalie Diethrich's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Nathalie Diethrich enrolled in Medicare?

Yes. Nathalie Diethrich is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Nathalie Diethrich accept?

Health plans from Blue Cross and Blue Shield of Texas list Nathalie Diethrich as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Nathalie Diethrich was last updated on September 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.